1. Department of Electrical Engineering, National Chi Nan University, Nantou County, Taiwan
2. Department of Physics and Electronic Engineering, University of Science (Vietnam National University of Hochiminh City), Hochiminh, Vietnam
3. Graduate Institute of Biomedical Engineering, National Chung Hsing University, Taichung, Taiwan
4. Department of Plastic Surgery, Show Chwan Memorial Hospital, Changhua, Taiwan